TLD is an acronym standing for Top Level Domain. It is the part of the url that comes after the final period and before the slash. There are TLDs assigned to each country in the world, and also TLDs for commercial, military, government, educational, and other types of institutions.

acronym for "tasty little dish" which is used to describe the cuter or smaller girls of the girl variety. You can even use TLD out loud without girls knowing what you are talking about...unless they're smart of course...

GUY 1: "DAYYUMM check out that TLD, mang!!!"
GUY 2: "WOW I would rock that number ALL NIGHT!"
GUY 1: "oh.. i guess you can say that about your sister.."